lufa as host.

[ulao]

I was doing some reading looking for a way to read a USB device and output serial data from it.  Sort of backwards from the norm. I was certain I read that LUFA can act as a host. How hard would it be (or is it possible) to read say a Game pad USB device with LUFA (in host mod?) and get the payload so that I can send it out via serial, isp, i2c, whatever.

[Dean Camera]

It's supported, but only on the two USB AVR8 models that have hosting capabilities - the AT90USB1287 and the AT90USB647. They're rather expensive these days, and I'd recommend choosing a far cheaper ARM part instead with far more performance/capabilities than the aging 8-bit devices.  Were you to use an AT90USBxxx7 part however, there's a number of LUFA examples in the Demos/Host/ directory to help you. The Demos/Host/ClassDriver/JoystickHostWithParser demo would be the closest example to what you were after.

- Dean

On 8/03/2019 4:46 am, ulao wrote:

I was doing some reading looking for a way to read a USB device and output serial data from it.  Sort of backwards from the norm. I was certain I read that LUFA can act as a host. How hard would it be (or is it possible) to read say a Game pad USB device with LUFA (in host mod?) and get the payload so that I can send it out via serial, isp, i2c, whatever.

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